Automatic steam-pump governor.



C. P. MCMULLEN.

AUTOMATIC STEAM PUMP GOVERNOR.'

APPLIATIoN FILED JUNE 3071908.

924,097 Patented June s, 1909.

2 SHEETS-SHEET 1.

WIT/VESSES I /lV/E/I/TOH.

l C. P. MGMULLEN. AUTOMATIC STEAM PUMPGOVERNOR.

APPLICATION FILED JUNE so. 1908,

924,097. Patented June 8, 1909.

2 SHEETS`-SHEET.2.

ifi

ATTORNEYS Y No. 024,097.

:NITED` STATES PATENT OFFICE. CHARLES P. MCMULLEN, OF BROOKLYN, NEWYORK, ASSIGNOR TO THE `IDEAL ATOMATIC MANUFACTURING COMPANY, OF NEWYORK, Y., A CORPORATION OF NEW YORK.

AUTOMATIC STEAM-FUI? GOVERNOR.

Specification o! Letters Patent.

Patented June 8, 1909.

Application filed .Tune 30. 1908. Serial No. 441,186.

To all whom it may concern:

Be it known that I, CHARLES P. MCMUL- LEN, a citizen of the UnitedStates, and resid ing at Brooklyn, in the county of Kings and State ofNew York, have invented certain new and useful Improvements in AutomaticSteam-Pump Governors, of which the following is a specification, such aswill enable those skilled in the art to Whichit appertains to make anduse the same.

This invention relates to governors for steam pumps, and particularly todevices oi this class which employ arsteam throttle valve device throughwhich steam passes to the pump,- together with a hydraulic cylinder incommunication with the water discharge end of the pump, said cylinderbeing provided With a piston in o' erative connection with; the throttlevalve evice and operated in one direction by the pressure of water fromthe discharge end of the pump and in the opposite direction bymechanical devices, s o as to control the flow of steam by which thepumpsis operated, the hydraulic cylinder"being a o provided with meansfor sup lyin a ubricant thereto, or to the end t ereo which is incommunication with the Water dischar e end of the pump so asto lubricatesaid cynder and piston and maintain said Iparts in perfect operativecondition at all times.

The objects of the invention are as fol lows:-First. To rovide imrovements in governors of the clss s ecie for suppl g oil to thecylinder witliout shutting o the governor or stopping the operation ofthe pump. Second. o provide means whereby the pressure-exerted by themechanical def vices to move the piston in one direction may beregulated so as to accommodate the gov? ernor to heavy or light Work.Third. To provide a governor of the class specified which is automaticin its o eration under or' dinary conditions, and which will operateunder hi h or low rassure, and which is also provide with at rottlevalve which operi atea automatically t`o regulate the pressure,

i When-the governor is in operation, and which may be o rated -by alever orvother handoperated evlce to form a complete cut-off or stopvalve. Fourth. To provide a governor of the class specified wit a leveroperated device'for changing the pressure exerted on the piston by themechanical devices so as to adapt the governor for light or heavy workwhen desired, and to entirely shut oil the steam supplied to the pumpwhen necessary. Fifth. To provide a overnor of the class specified withmeans W ereby the pressure o f water in the pi which is in communicationwith the eylindgi may be controlled Aor regu lated so as to prevent atoo uick openin of the governor or the steam vave thereof W n pressureis reduced in the water end of the cylinder; and with these and otherobjects in view the invention consists in the construction, combinationand arrangement of parts hereinafter described and claimed.

The invention is fully-disclDSed in the following specifcation, of whichtheM 'aecompanying drawings form a part, in which lthe separate parts ofmy improvement are designated by suitable reference characters in eachof ,the views, and in Which,'-

Figure 1 is a. side view of an automatic steam pum governor involving myinvention, part o the construction being in section Fig. 2 a view atright angles to Fig. 1 and on an enlarged scale and showingmodifications, part Aof the construction being in section; ig. 3 anenlarged side view` o a combination automatic and hand operated Cut Offvalve .used in the water pi connection for the cylinder of my improveand shown in Fig. 1, part of t e construction being in section; Fig. 4 aside view on 'an enlarged scale of` a coupling block shown in Figs. 1and 2 andforming art of the mechanicel means for moving t piston in onedirection; Fig. 5 a section on the line 5?'5 of Fig. 4; Fig. 6 a sideview of the main frame of the governor detached, said frame being shown'in F ige: 1 and 2, and ;Fig. 7 a plan view of a modiied form of leverconstituting a part of the mechanlceldevices for moving the piston inone direction, and on anwenlairged scale.- y

his invention is an improvement on escribed and claimed in ters Patentranted to me Nov. 8, 1904, N o. 774,266 am? reissued Jan. 10, 1905,` No.12,303 also in Letters Patent of the United' States granted to me Jan.23, 1906, No. 810,666; July 9, 1907, N0. 859,327 Bild July 9, 15907,`No. 859,407, Said governorseinplvyms cyhpders one end of which a mcommunication with. the discharge end 0f ump governor,

the pump' and being provided with a piston operated in one dlrec-tion byfpressure of water from the discharge end o the pump, and in the oposite direction b mechanical devices, an said cylinder belng providedwith means for maintaining a supply of oil in the end o f the cylinderwhich is connected with the ump.

In the rawings forming part of this speciication, I have shown at a, thecylinder of a pump overnor of the class specified, and ysaid cy inder isprovided at its lower end with a coupling a,z with which7 in practice,is connected a trap which is in turn connected with the discharge end ofthe pump or a pipe connected therewith, v

The'cylinder a is rovided withl a differential piston b, the ower endportion b of which exactly fits 'said cylinder in the form of'construction shown, .and the u per endk portion of which is smallerthan t e lower end, and inthe top portion of said cylinder is an annulargroove a3, and in one side wall thereof is a by-pass a whichcommunicates with'the groove a,s at a5 and with the bottom portion ofthe cylinder at a. with the cylinder is an oil supply pipe c vwith whichis connected an Voil vcup/cz between which and the pipe is a valve c3,and a force pumpuc* is also connected with the `pipe c-at c5. practiceoil is placed in the cup c? andpallowed to 'flow into the pipe c andinto the by-pass a4, after which the valve ca is closed and the oil maybe forced into the cylinder a so as to maintain asupply of lubrieatingmaterial therein Without stopping the pump or. interfering with theoperation thereof. p l

The connection between the bottom of the cylinder a and the waterdischarge end of e pumip is preferably made h' means of a trap cs own inFig. 1, and sai tra is connected with the coupling a and wit a pi e c'.which may be connected directly with t e discharge end of the pump orwith a water pipe connected with said pump. The pipe c7- is providedwith an automatic and hand operated cut off valve 'd also shown in Fig.1, and in detail in Fig. 3, and in practice a quantityof oil is alwaysmaintained in the trap c", and this oil may be forced into said trap bmeans of the pump c, and through event it would the cy der a'ashereinbefore described.

The/top portion of the cylinder a is provided with' a stuffing box a."closed by a gland a, and the top portion of the piston b through saidgland 'and is passes upwardl -movable theret ough. In the-form ofconstructlon shown the top. portion of the piston b is reduced' `size,but the said piston 'may be of the same transverse di-,

mansions throu hout its length, in which t the inner walls of the,cylinder a. and the piston would be lubricated the annular groove a,and/in thisv t Connected eventthe stuiiing. box a7 andthe gland as wouldbe correspondingly enlarged. The top portion of the` cylinder-a. alsoprovided with an air discharge'fr ventjdevice u lwhich incornmunication'witlr the annular groove a. f Mounted on the topportionfof vthe cylinder a is a yoke or frame e comprising a Y bottommember e, a to member e,.parallel side members e4, and a Iback member eparallel with said side members. y

`Connected with the top of the frame e is l a bonnetf containing astufiing box f2, and

the Ystuling box a." at the top of the cylinder a and the stuffing boxYf 2 are of the same style as the stuffingv boxes described and claimedvin U. S. Letters Patent, No. 859,327 and No. V859,407 granted-.to me Jul9, '1907.

' The cylinder a., the frame e and t e'bonnet f are arran edverticall'yas shown, and c'onnected wit the top of the bonnet is athrottle valve or valve casing g having an inlet pipe g2v and an outletpipe 93 and the ipe g2, 1n ractice, is connected with a steam v oiler,an the pipe g3 conveys the 'steam to the ump. p

l T e `throttle valve or valve casing g is of the same style as thatshown and described in U. S. Letters Patent granted to me July 9, 1907,No.-859,4O7 and 1s provided with two ports or passages g4 and g6 andcorresponding 'valve seats,l the port or passage g4 being smaller thanthe lower port or passage g5.

The top of the throttle valve or casing gis provided with a screwthreaded nipple 7L with which is connected a tubular casing h2 forming as ring chamber h3, and the top of the casing 2 is closed by a screwthreaded plug fi, having a central bore or passa e 'i2 with the top ofwhich is connected an oi cup 'if'. The top of thecasing h. is alsoprovided withl a jam'nut h* having handle projections h5, and the plug'i is provided with projections i* forming handles b which it maybeturned.

Connected with t e top of the'piston b is a rod j com osed, in the formof construction shown in 1g. 1, of two parts connected at j?,

and in the form of construction shown in Fig. 3 of three parts, thebottom and middle parts being connected at i2 and the middle and toparts abutting-at js where they pass througilJi the nip Alej'z. The rodj passes vertically through lille frame e, through the bonnet f and thestuffing ',box therein, and through the thfottle valve casing g and intothe tu ular casing h2, and the'top part of said rod in 1 and' the middleport1on thereof in Fig. 2 1s provided with a double valve device g" thesame asin the patent last Vreferred to. Y

The bottom part of the rod 7'.' is enlarged and screw threaded as shownin Figsfl and 2, and mounted thereon is a spring tension regulating nutjabove which 1s mounted-a disk etween the disk j. an the mitjfv arethrough which'therod loosely passes,

` vided. with handles rtions e4 thereof are in which said cross the-:rod j'passes loosely through said cross jh'ead. -cross head is a tube orsleeve k3, and mounted' I barxZ' having a segmental central placed ballbearings j, and said nut is proj? by which it may be turned.

'Mounted in the yoke or frame e is a cross r`'head k, and said yoke orframe or the side rovided with guides ead 1s movable, and

Connected with the bottom of said between said cross head and the diskj? is a pira] spring c, and the tube/or sleeve k3 extends downwardlyinto said spring and i proper position under all conditions.

of the cylinder a and rottle valve easing gis a ortion l2 provided withratchet' teeth l and 4, the upwith the top o'f the t per ratchet teethZ3 extending upwardly, and

the lower ratchet teeth Z4 extending downwardly. Between the. teeth Zaand l* is a blank space'ls, and the back bar e5 of the yoke l 'ori-framee` is provided with a socket l in which is pivoted at Z7 a lever m whichcarries l' a yoke m2 forming a part thereof and through Iprovided withanother yoke m3 ich the rod jpasses, and said lever is also throughwhich the se mental part Z2 of the bar l passes. The ever m is alsoprovided outwardly' 'of the yoke m3 with to'p and bottom guides 'm4 andm5 through which are passed top 'and bottom rods m and m7 on which aremounted springs m8 and m9, and mounted on the outer end portion of theyoke m3 is a keeper 1L. The ends of the rods m and m7 'are provided withdogs 11.2 Whichare adapted to engage ,the teeth Zii and Z4, and'connected with the out-er ends of the rods me and m7 are bell cranks n3which are pivoted to the lever m at n.4, and said lever is provided atits end with a handle/n,5 between which and the ends.

of the bell cranks n3 are placed springs n, The lever m is also providedin the opposite sides of the yoke m2 with wheels a7 which are i adaptedto bear on the cross head c, and the separate parts of the rod 7' asshown in Fig. 1, am the bottom portions of said rod are con ne ted asshown in Fig. 2 by a coupling block o which is preferably rovided at thebottom with a ared base o2 w ich rests on the wheels n. -The block o ispreferably composed of tw'o'parts as shown in Figs. 2, 4 and 5 and saidparts are connected by a bolt oswhich is passed therethrough and betweenthe ends'of thefseparate partsof the rod j'as shown in F`ig.4, and thebottom portions of said rod in he top part of the rodj in theconstruction shown in Fig. 1 is provided just above the nip le h of thevalve casing g with-a disk vo* on w ich is placed a spiral spring 05-which 1s weaker thanthe spring'k and above which l is placed a disk o'between which and the 'throughone of the side members Aratchet teeth Z3and l'4 and t the ports or. passages o8 vplug 'i are laced' ballbearings 07, and the tension of t e sp1-lng o5 may be regulated at anytime by turning said plug, and the tension of the spring also mayberegulated -by turning te nut 7*.

spring chamber h3 is provided with a drain device p2.

The valve d 1n the water` plpe 27 1s constructed as shownA 1n Fig. 3,the said valve comprising a casing provided with a diaphragm d2 in whichis a port or assage d adapted to be closed by a bal `valved which 1splaced over said port or passage and above which is a bonnet plug d5screwed into the top of the valve casing and -rovided with asemi-spherical recess d, he top portion of the bonnet plug d5 isprovided with a stuffing box dl, and passed downwardly therethrough andthrough the plug d5 is a screw d8. The bottom part of said valvecasingis provided with a stuffing box construction d, at the bottom Aof whichis a jam nut d1", and passed upwardly through the stuihn'g'boxconstruction and into the valve casing is a screw (In.

In Fig. 7 of the accompanying drawings, I have shown a modified form ofthe lever m., in which the outer end portion thereof is composed of twoparts'connected lby parallel side members r which take the place of theyoke m3 in Fig. 1, and which form a Aspacer2 through which the segmentalpart Z2 of the bar Z passes. A set screw r3 is passed adapted to bear onsaid bar Z and by means of this construction the lever m mav be lockedto the bar Z at any oint, andthe c dogs 'n2 and means for operating saiddogs are rendered unnecessary.

Thc object of. the bolts or passages o in the nipple h and-the )Orts orpassages 0 in the disk 0 is to provide forfa free circulation throughthe s ring chamber h3. l It will be understood,'o course, that anypressure in the spring chamber h will not interfere with' the operationof the spring therein nor with the operation of the governor in any way,and

chamber h3 to free or drain itself when the valvecasing gis closed, thisdrainage taking place through the pipe g3 leading to the operation ofthis apparatus is, in the main,

'r2 and is enable the spring IDP- f t will be understood, of course,that the of the cylinder a.

the same as the operation of the apparatus described and claimed in thepump Governor patents hereinbefore referred to. When. the apparatus isin operation the steam from the boiler passes into vthe throttle valvecasing g f `the pump either directly or indirectly conveys water underpressure to the lower -end The lower end of the cylinder aandthe i trapc contains, at all times, a body of oil as hereinbefore described, theobject of which is to lubricate the cylinder and the piston and preventcorrosion and kee said parts in proper operative condition at a ltimes.The

I pressureof the water inthe trap c and in the Y oil 'b which thepressure is transmitted to ottom ofthe cylinder operates against the theottom ofy the piston and the vertical lmovement of the piston willoperate the rod j vertically and-cause thevalve g in the valvecasing gto close the ports or passages g* and g, and this, of cou-rse, will cutoii' the su plyof steam to the ump.

gt will be understoor that the sprin o5 and k control this verticalmovement o the piston and the pressure by which it is operated, and thiscontrol is effected according to the If a ow pressure is required, sayup tofrom 20 to' 35 poundsor thereabout' the spring o5 only is used, andthe tension of this spring can be regulated at all times b means of thescrew threaded plug 'ifas will readily understood. VIf the pump be setto work, say at 30 pounds pressure the piston 'b and spring os willoperate to control the `flow ofA steam througJl-:sthe valve casingaccomplish t result Withoutt e aid ofthe' lower spring c. v

-If it is desired to lWork thepump on a higher pressure, say from 40 to150 pounds or higher stillv if desired the bottom spring 7:4 is-brought'into operationin` addition to the spring o5. The control of thespring k* is eected both b the lever m. `he position of the lever m,shown in Fig. l is its normal position, or that in which the spring k*is not o erating and in v which the pumpV is controlled y the spring o5f only. Ifnow it is desired to increase the Y V pressureiof the pump thebell cranlrs 'n3 are operated to Withdraw the Adogs n? from theirengagement with'the ratchet teeth la and Z4,

and the outer. end of said lever is depressed to the desired extent thedegreeI of the downward movement of said lever being controlled orindicated by scale numbers on the quadrant or rack bar l.

The bottom dog 'n' will lock the lever m in any desired position belowthe horizontal, and in this way the spring lc* may be comressure whichis desired on the pump.

in order to means of the nut j* and by o pressed quickly or instantlyso'as to change v the pressure on the pump immediately, and

said pressure will be maintained as long as the lever mis left in its deressed position.

Ii' the regulation of alle tension of the spring 7c* is not'sufficiently exact when the lever m is brought into o eration as abovedescribed, the nut j* may e operated to exactly regulate the tension ofsaid spring to any vdesired extent.

lf at any time it becomes necessary to cut off entirely the flow of'steam to the pump, either by reason of a breakage in the pipeconnections, water or steam, hose connections or any other lpart of theapparatus, the lever m may, as wi upwardly so as to force the valve rodj u wardly and cause the valve g6 to cut off tige ilow of steam throughthe valve easingg, and the lever 'm may be ocked in this position by theupper dog n2 thereof.

In the downward operation or movement of the lever m as above describedthe wheels a7 bear on the cross head 1c, and this facilitates theoperation of the lever `and of said cross head and reduces friction,andin the upward movement of said lever in order to cut ofi the ilow ofsteam through the valve casing g the Wheels fn,7 bear on the flanged nuto for the same purpose.

The'object of making the nut o in.two parts is to facilitate thedetachment and disconnection of -the separate parts of the rod j and theseparate parts of the governor when ythe same becomes' necessary, andalso the assemblin of said parts; and the object of dividing t e upperportion of the rod ginto two parts as shown in Fig.-2 is to rovidev.means whereby governors of this c ass already installed may be easilyrepaired while in' place, or the im rovements described and claimedAherein ap 'ed thereto.

The ball valve d) which the'water. ipe c7 is rovided is a metal valve,and the o ject of valve device is to controlthe opening of the valve(,41a the 4 in the valve device d with vthrottle valve casing g so as toregulate the speed of the movement of said valve g, and t be understood,be moved i ereby regulate the,orce applied 4te` the mainpumping engineso-as to prevent a'too ereof. The normal position of the valve d*When'the apparatus is in o eration is the Vun- 'seated position in whicht e water is free to passthrough the port or passage da, and said `valveis he d in this position by the screw d,

and as the pressure in the pipe 0"- increases the valve d* is raisedhigher in proportion to 115" qkpck movement of the engine atthe start tscrew d is turned down until it stood.,l by the pressure on the oppositesides of the valve cas-ing Whatever that pressure ma be.

en it is desired to use the valve device cl as a stop valve thescrewduis run d'own so that the valve d"will' drop toits seat and theressesA on said valve. It will be understoor that the use of the lever mshown in Fig. Twill be exactly the same as the use of said lever' asshown in F ig. 1 as fal'- as vthe control of the spri pressure isconcerned, the only differL en ce ein that the set screw r3 is used tolockethe ever at any desired point onthe 'quadrant or se mental bar Z2.;

Although I ave described my improved governonasparticl'arly adapted foruse in vconnection withy a pump for pumping water, it will be apparentthat the same maybe used in connection with. a pump used for pumping anyother liquid', air, gas or similar substance under pressure, and myimprove- -ment may be 'employed in connection with ap aratus of thisclass usedv for any purpose.' aving fully described my invention, what Icl'aim as new and desire to secure-by Letters Y tle valve Patent, is

1. In a governor for steam` pumps, a throtevice placed' in' the steampipe, a

'hydraulic cylinder provided with a piston in o erative connection withthe valrve of the t rottle valve device, a Water pressure pipe connectedwith saidv cylinder and adapted to be connected with a pump, the pistonin said cylinder being operated by Water ressure from said 'pipe toxcliose said thrott e valve device, a low .pressure regulator adapted tooperate said plston in the opposite direction and open said valve, and ahigh ressure regulator also adapted to operate said cylinder in theopposite direction, said pressure regulating devices being adapted tooperate separately or together.

2. In a overnor for steam pumps, a throttle valve evice placed in thesteam pipe, a

hydraulic cylinder provided with a piston 1n o erative connection withthe vvalve of the t rottle valve device, a water pressure pipe connectedwith saidcylinder and adapted to be connected With a pump, the pistonin'said cylinder being operated by water ressure from said pipe to closesaid thrott e valve device, a low ressure regulator adapted to operatesaid`p1ston in the opposite direction and open said valve, and a highregulator also adapted to operate said cylin- 1 vder in the oppositedirection, said pressure regulating devices beingadapted to'operateseparately or together-, and means whereby thethigh ressure regulatormay be operated to close t e throttle valve devlce.

3. In a' overnor for steam pumps, a throttle valve evice placed inthe'steam pipe, a hydraulic cylinder provided with'a piston inoperative'connection With the valve of the Pressure the hydrauliccylinder an throttle valve device, a water pipe adapted to connect thedelivery end. of the pump' with the hydraulic' cylinder, :means forsupplying oil to said cylinder, a tensional dievice adapted to hold thethrottle device openuuder low pressurel and a supplemental tensionaldevice used in `comblnati'on with the irst named tensional device undervhigh pressure conditions.

4. In a vernor for steam pumps, a throttle` valve 'evice placed in thesteam pipe', a hydraulic cylinder provided with a piston in o erativeconnectionv with the valve of the t rottle valve device, a water pipeadapted to connect the delivery end ofthe pump'wi-tl'l the hydrauliccylinder, means for` supplying oil to said c linder; a tensional deviceadapt-- 5. In aovernor for steam pumps, a throt-v tl'e valve eviceplaced thesteam-pipe, a hydraulic cylinder provided with a piston in oerative connection with the valve'o the t rottle valve device', a wateripe adapted to connect the delivery end' of t e pump with the hydrauliccylinder, means for supplying oil to said c linder', a tensional deviceadapted to hold t e throttle device openunder low pressure, asupplemental tensional' device used in combination' with the' firstnamed tensional device under ressure, and

meansY for throwing the supp emental tensional' device into and' out ofoperation 'and for regulating the force of bot-h of said ten-|- sionaldevices. a.

6'. In a vernor for steam pumps, a throttle valve evicefplaced in thesteam pipe, a hydraulic cylinder provided with a piston in o erativeconnection with the valve ofthe Vt rottle valve device, a water pipeadapted to connect the delivery end of the pump with 'the hydrauliccylinder, means for supplying oil to s aid c linder, a tensional deviceadapted to hold t e-throttle device open under low pressure, and asupplemental tensional devi used in combination with the first namedtensional device under h i h pressure conditions the Water pipe Whic isin communication with the cylinder being also provided with an automaticregulating and hand operated cut off valve. l

7. In a overnor for steam pumps, a throttle valve evice placed in thesteam pipe, a

-hydraulic cylinder provided with a piston in o erative connection withthe valve of the t rottle valve device, a pi e connected with` adaptedto suply water from the pump thereto, means for orcing oil into saidcylinder and water pipe ainst the .pressure of water therein and W llethe pump is in operation, said piston the hydraulic cylinder and adaptedto supply water from the um thereto, means for forcing oil into sald cy'nder and Water pipe i avainst the pressure of Water therein and i i l 4i l 1 i l W -le the pump-is in operation, said piston 3 being operatedby pressure of water 1n the l throttle valve casing adapted to open andWater plpe to close the throttle valve device and belng o erated in theopposite direction by tensione devices, and said water pipe being alsoplrovided with an automatic regulating and and operated cut off valve.

9. In a overnor for steam pum s, a hydraulic cylinder, a frame one endowhich is4 connected With one end of said cylinder, a steam throttlevalve casing connected with the other end of said frame, a iston mountedin said cylinder and provi ed with a rod which asses through said frameand through saidV t ottle valve casing, a cross head mounted in'saidframe and movablelon tudinally thereof, a tensional device for hollingthe throttle valve open, the tension of s'ald tensional device beingadapted tobe increased or reduced by the movement of said cross head', alever mounted in said frame and adaptedv by its movement in onedirection to increase the tension of said tensional device, and by itsmovement in the opposite direction to open the throttle valve anddecrease the tensionl of` said tensional device,

Letters Patent.

ionli'lin.. Letters Patent No. 924,097,

and means for locking said lever in different positions.

10. In a governor draulic cylinder, means for supply-ing water to oneend thereof under pressure, a frame one end of which is connected withthe frame end of said cylinder, a steam' throttle valve casing connectedwith the other end of said frame, a s ring cz'tsing connected with thethrottle va ve casing o positetsaid frame, a

1 piston mounted in sai cylinder, a. rod connected with said `t.s'a'id,'.iralne and t irough sai 'casing and into said springcasing,said rod assing through throttle valve iston and being provided with avalve Within said close the passage therethrough, and a spring tensionaldevice mounted in the spring casing and operating 0n said rod to opensaid valve,

for steam pumps, a hysponding to the pressure it is desired to carry lon the pump and means carried by said lever and (2o-acting with saidquadrant device to lock the parts in any desired osition.

In testimon Y that I claim tv e foregoing as my invention have signed myname in pres-- ence of the subscribing Witnesses this 29th day of June1908.

CHARLES AP. MCMULLEN.

Witnesses:

C. E. MULREANY. A. R. APPLEMAN'.

lt is hereby certified that in Letters Patent No. 924,097, granted JuneV8, 1909, upon the `application of Charles P. Mchllullx-isn,z ofBrooklyn, New York,`for.an improvement in A\ntomatic Steam-PumpGovernors, 'error vappears in the printedspecification rgc'lliiring coriection-as follows :l Page 5, .lines 40-41 and lines 56-57, the wordcylinder should lread piston; and that Athe propercorrection has beenmade in the files and records ofthe' Patent Oce and is hereby made insaid Signed and sealed this 10th day of May, A. D., 1910.

0.o. BILLLNGS, Acting Gommseofwr o f Patents. I'

the hydraulic cylinder and adapted to supply water from the um thereto,means for forcing oil into sald cy 'nder and Water pipe i avainst thepressure of Water therein and i i l 4 i l 1 i l W -le the pump-is inoperation, said piston 3 being operated by pressure of water 1n the lthrottle valve casing adapted to open and Water plpe to close thethrottle valve device and belng o erated in the opposite direction bytensione devices, and said water pipe being also plrovided with anautomatic regulating and and operated cut off valve.

9. In a overnor for steam pum s, a hydraulic cylinder, a frame one endowhich is4 connected With one end of said cylinder, a steam throttlevalve casing connected with the other end of said frame, a iston mountedin said cylinder and provi ed with a rod which asses through said frameand through saidV t ottle valve casing, a cross head mounted in'saidframe and movablelon tudinally thereof, a tensional device for hollingthe throttle valve open, the tension of s'ald tensional device beingadapted tobe increased or reduced by the movement of said cross head', alever mounted in said frame and adaptedv by its movement in onedirection to increase the tension of said tensional device, and by itsmovement in the opposite direction to open the throttle valve anddecrease the tensionl of` said tensional device,

Letters Patent.

ionli'lin.. Letters Patent No. 924,097,

and means for locking said lever in different positions.

10. In a governor draulic cylinder, means for supply-ing water to oneend thereof under pressure, a frame one end of which is connected withthe frame end of said cylinder, a steam' throttle valve casing connectedwith the other end of said frame, a s ring cz'tsing connected with thethrottle va ve casing o positetsaid frame, a

1 piston mounted in sai cylinder, a. rod connected with said `t.s'a'id,'.iralne and t irough sai 'casing and into said springcasing,said rod assing through throttle valve iston and being provided with avalve Within said close the passage therethrough, and a spring tensionaldevice mounted in the spring casing and operating 0n said rod to opensaid valve,

for steam pumps, a hysponding to the pressure it is desired to carry lon the pump and means carried by said lever and (2o-acting with saidquadrant device to lock the parts in any desired osition.

In testimon Y that I claim tv e foregoing as my invention have signed myname in pres-- ence of the subscribing Witnesses this 29th day of June1908.

CHARLES AP. MCMULLEN.

Witnesses:

C. E. MULREANY. A. R. APPLEMAN'.

lt is hereby certified that in Letters Patent No. 924,097, granted JuneV8, 1909, upon the `application of Charles P. Mchllullx-isn,z ofBrooklyn, New York,`for.an improvement in A\ntomatic Steam-PumpGovernors, 'error vappears in the printedspecification rgc'lliiring coriection-as follows :l Page 5, .lines 40-41 and lines 56-57, the wordcylinder should lread piston; and that Athe propercorrection has beenmade in the files and records ofthe' Patent Oce and is hereby made insaid Signed and sealed this 10th day of May, A. D., 1910.

0.o. BILLLNGS, Acting Gommseofwr o f Patents. I'

1t is hereby certified that in Letters Patent No. 924,097,

upon the application of Charles P. McMullen, of Brooklyn, New York,foran Automatic Steam-Pump Governors, an error appears in the Page 5,lines 4041 and lines I improvement in printedspecifcation requiringcorrection as follows:

56-57, the word cylinder should read piston; and that the propercorrection has been made in the tiles and records of the Patent 0650sand is hereby made in said Letters Patent.

Signed and sealed this 10th day of May, A. D., 1910.

C. C. BILLINGS, Acting Uommeonerqf Paziente.

[SEAL] granted June 8, 1909,

